Love this thread. I live on a canal in st Pete right near weedon island, preservation mangrove habitat if you are not familiar. I've always considered collecting, not from my dock of course, but deep in the mangrove channels. Everything within 30 yards is non combustion motor zones, and so I can troller it in there pretty far. I always imagined the water must be pretty decent with all of the mangroves. I wouldn't drive clear out to the gulf side though. I'm just too worried about the bay water. I should go collect and have some good testing at an LFS.